feat(workflows): add revision history, trash, UUID naming, and backup

- Store up to 50 revisions per workflow in SQLite with normalized SHA dedup
- Soft-delete workflows to trash (7-day retention) with restore and permanent purge
- Assign UUID filenames for new and duplicated workflows; show name + file in UI
- Warn on invalid YAML, unknown scripts, and plaintext secrets with save-anyway option
- Add workflow backup zip (workflows + plugins) and merge/replace restore
- Trash page, history panel on editor, and smoke test

Co-authored-by: Nasyarobby Putra <nasyarobby@gmail.com>

packages/server/start-app.js

@@ -28,11 +28,7 @@ import {
   createWorkflowWorker,
   getRedisUrlForLog,
 } from "./workflow-queue.js";
-import {
-  getConfigGeneration,
-  startHeartbeatLoop,
-  subscribeReload,
-} from "./control-bus.js";
+import { purgeExpiredTrash } from "./workflow-trash.js";
 
 /**
  * @param {{
@@ -48,6 +44,14 @@ export async function startApp(opts = {}) {
 
   if (shouldMigrate) {
     await migrate();
+    try {
+      const purged = await purgeExpiredTrash();
+      if (purged > 0) {
+        log.info({ purged }, "purged expired workflow trash");
+      }
+    } catch (err) {
+      log.warn({ err }, "workflow trash purge failed");
+    }
   }
   enableLogPersistence();